<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <script src="../../../res/jquery.min.js"></script>
    <script src="../../../src/bs.base.js"></script>
    <script src="../../../src/bs.placeholder.js"></script>
</head>
<body>
     <input type="text" placeholder="请输入姓名" />
    <script>
        $(document).ready(function(){
            bs.placeholder();
        });
    </script>
</body>
</html>